Airport on artificial island in Osaka Bay — Located 5 km off the coast of Osaka, Japan is the Kansai International Airport. The airport is built entirely on a man-made island, 4 km long and 1 km wide. The only link between the island and Osaka is by the world's longest 2-tiered bridge. Although the airport is built to withstand earthquakes and typhoons, the artificial island itself is sinking faster than anticipated. This episode looks at various measures that are taken to keep the airport 'afloat,' and the various facilities and services available to keep the airport running. (thetvdb.com)